We're Investing for Our Daughter. She Won't Get Any of It at 18.

Our daughter is still young enough that her age gets counted in months, and she has already slept through every money date we've had.

Slept through is the honest verb. My wife and I sit down on the first weekend after the 1st, pull the bank statement into the tool, and ten minutes later we're finished; she spends all ten of them in the carrier. I'm counting them anyway, because when people talk about investing for your child they nearly always mean which account, and in our house the account is the least interesting decision we've made.

We do invest for her.

Same world ETF we buy for ourselves, same monthly purchase, nothing with her name on it.

And I already know the two things I don't want to do. Hand her a pile of money on her eighteenth birthday. Or pretend that withholding it makes me a better parent, which is the other failure mode and the smugger one.

Everybody argues about how much and where.

Almost nobody argues about when.

Investing for your child doesn't need its own account

We don't have one for her. No junior wrapper, no adjacent login, no second set of statements. It always seemed strange to me: open another account, buy the identical fund inside it, and pay a second set of fees for a label.

There is a house, though. We own the one we live in and we're slowly paying off a second, and that second one is what we intend to hand over — a base she can start a life from rather than a balance she can spend. I've written before about how that building is a part-time job rather than passive income.

The other half of owning it is that one day it's hers.

She won't be told the number for a very long time. A number is the least useful thing I can hand a nine-year-old, and I'd like her to pick a life before she starts doing arithmetic about whether she needs to.

Everyone is funding the deposit. Nobody is arguing about the date.

The instinct I'm pushing against is mainstream now, and it's sympathetic. Northwestern Mutual's 2026 study found 74% of US parents with children at home would consider helping them buy a home or have already started planning for it; 29% of those rank it above paying for college.

This isn't only an American story. Savills reported in June that 53% of UK first-time buyers get direct family support, and underneath that headline sits the number I can't put down: 63% of buyers aged 20 to 24 got help, against 44% of buyers aged 45 and over. Buying young in Britain is close to a proxy for having parents who paid.

The German figures explain the panic better than any survey. Roughly 39% of younger German renter households earn enough to carry a mortgage payment; just under 6% have the deposit. That isn't a character problem, it's a lump-sum problem, and a lump sum is exactly the thing a parent can solve. Closer to home, a Broker Consulting survey with Ipsos last November found only 7% of Czechs aged 18 to 30 expect to reach a place of their own without outside financial help.

Seven percent, in the country my daughter is going to grow up in.

So the deposit-funding parents aren't fools. They're reading the market correctly and then attaching the money to a birthday instead of to a person.

What actually transfers when you're investing for your child

First, the three numbers this genre fires at people. Seventy percent of wealth transfers fail by the second generation. A third of heirs blow it within two years. Money habits are set by age seven. Every one of them sells something, and not one says what it's quoted as saying.

James Grubman walked the footnotes on the 70% rule and found it traces back to a single 1987 study of 200 family businesses in one American state, measuring business succession. The 70% is simply the inverse of a 30% continuity rate. The "two years" line is laundered from Jay Zagorsky's work, which followed 7,514 people — a boomer cohort, not a generation collecting deposits — and found the average inheritor spent about half of what they received, with 34.9% no better off afterwards. No two years anywhere. Median inheritance in that data: $11,340, which is a decent deflator for the whole moral panic about heirs.

Age seven irritates me most. The Cambridge report underneath it does say a seven-year-old can already grasp what value means, and then concludes close to the opposite of the headline: teaching young children explicit financial knowledge "is likely to be ineffectual in shaping or changing their behaviours." What moves the needle is what adults model and demonstrate. The famous window came from a spokesperson quote in the publicity, not from the paper.

The real finding is better for my argument than the myth was, and there's a bigger one behind it. LeBaron-Black and colleagues, writing in Family Relations in 2023, separated the three ways parents pass money sense on — modelling it, letting kids practise it, talking about it — across 4,182 young adults. Modelling predicted financial behaviour and satisfaction. Hands-on experience predicted self-efficacy. Parent-child financial discussion had zero direct or indirect associations with anything they measured. Their own recommendation was modelling and experience "rather than lecturing."

Not that talking is harmful. It's that talking on its own did nothing.

Ten minutes a month with a bank statement open is the other thing. A serious conversation on an eighteenth birthday is not.

Why not on her eighteenth birthday

I look at me at 18 next to me now, a husband and a father, and those are not the same person by any standard I'd trust with a house. That's the only autobiography you're getting. The lesson isn't that teenagers are idiots. It's that plenty of kids go through a stretch of teenage quickness, fast and certain and expensive, which passes on its own, and the one thing it shouldn't take with it on the way out is the base layer every human needs, which is a roof.

So the plan, to the extent you can plan around a person who currently communicates in a single vowel: she lives in that house for free, for as long as it's useful to her, and neither of us ever gets to say "it's my roof."

Never. That one is banned before she can walk.

What we won't do is sign the deed over the week she finishes school.

Data: Eurostat, 2024.

Across the EU, young adults leave the parental home at an average age of 26.2. In Czechia it's 25.8. The free roof is already Europe's most common gift, and we just don't call it a wealth transfer, because no money moves.

What we'll tell her is: don't worry about the roof, go and pick what you actually want to do, not a degree chosen for its salary. I'd be genuinely happy if she wanted to be a kindergarten teacher. Enormous impact, and in Czechia a salary you can't build much on top of. If the bottom layer is covered, that's an option rather than a sacrifice.

And for the record: I wouldn't have refused a head start at 22 either. Nobody does.

The best argument against me comes from someone who mostly agrees with me

Bill Perkins makes the strongest case against waiting, and the parts of Die with Zero that touch this question are hard to argue with. Money has wildly different utility at different ages, giving with a warm hand beats giving with a cold one, and an inheritance landing when your children are in their sixties is a gift to almost nobody. In Ireland, where it's broken out properly, the median transfer to a household under 35 is about €15,000; to a household over 65, about €109,600. Family money arrives small when you need it and large when you don't.

Then notice where Perkins actually lands. He is not arguing for eighteen. Every summary of the book I've read puts his ideal window somewhere in the twenties and thirties — late enough that the person receiving the money is already a person — and I've never managed to confirm the exact ages in his own text, so I won't pretend to quote them at you. The shape of his position and the shape of mine are not far apart. My real disagreement is with the parents planning a deposit for a child who is currently in school, and with an industry that prints "assets are turned over to the child at the age of majority" in a specification table as though it were a feature rather than a decision.

Compounding is the objection I can't argue with. Except that compounding is a property of money that stays invested, and staying invested is a habit, not an account setting.

The charge I can't dismiss is paternalism. Delaying might just be my comfort dressed up as her benefit. Grubman's warning points straight at people like me: families predisposed to pessimism reach for structures that get the founder's way without the fuss and bother of talking to anyone. If our answer were a trust and a silence, that's exactly what we'd be doing. The delay was never the mechanism here. Her being in the room is.

One family, one account, one monthly budget

My father took cash out once a month, and everything the family spent came out of one wallet. When the wallet was thin in the third week, that was information all of us had. No separate accounts, no private buckets, no negotiating about whose money paid for what.

I'm not going back to cash. I carry almost none of it. But the shape of that arrangement is the best thing my parents handed me: one family, one account, one monthly budget, where the only thing you manage together is priorities. We still each keep a fun-money pile nobody has to justify, and the machine underneath is shared.

The habit I'm breaking is the other half of what I inherited.

My family never invested. Money went into a savings account and stayed there, which was a defensible reading of Europe twenty-odd years ago, when pensions worked and ordinary people didn't buy index funds. It isn't defensible now, and I enjoy the alternative far too much to skip it.

So she gets budgeting young, small and concrete. And around twelve, she joins the money date itself. The real one, statement open, watching her mother and me disagree and then decide, with the same Golf parked outside because we chose that on purpose too.

Timing is the gift

The head start we're trying to give her isn't in an account. It's ten minutes a month at a kitchen table, and then, at some point we can't name yet, a set of keys.

In that order, and the order is the whole argument.

Get it wrong one way and we'll have been too slow, she buys later than she could have, and that costs her something real. Get it wrong the other way and we'll have handed a large irreversible object to someone who hadn't yet had the chance to become the person who could hold it. I know which one I'd rather explain over a coffee when she's 30.

Her age is still counted in months, and every plan in here meets an actual teenager eventually. I planned the baby year like a pessimist and still got the details wrong, in the nice direction.

So the part I'm confident about is the smallest part. She'll be in the room for ten minutes a month, watching two people who like each other work out what to do with a bank statement. That's the piece of investing for your child that never shows up in the comparison tables, and if it turns out to be the only thing that transfers, it will still have been the bigger gift.